Possible development east of Lesser Antilles,model runs here

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njweather
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Re: GFS,EURO spawns New Low off Africa

#161 Postby njweather » Fri Jul 11, 2008 1:21 am

All of the following have been initialized at 2008071100. Each image is at 144hrs.

UKMET
http://moe.met.fsu.edu/tcgengifs/ukm/20 ... /slp24.png

CMC
http://moe.met.fsu.edu/tcgengifs/cmc/20 ... /slp24.png

GFS:
http://moe.met.fsu.edu/tcgengifs/gfs/20 ... /slp24.png

Looks like GFS develops it most aggressively, followed by UKMET, then CMC, which shows some kind of weak low near the area...
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Re: GFS,EURO spawns New Low off Africa

#162 Postby blp » Fri Jul 11, 2008 2:02 am

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Re: GFS,EURO spawns New Low off Africa

#163 Postby blp » Fri Jul 11, 2008 2:09 am

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#164 Postby KWT » Fri Jul 11, 2008 4:46 am

Well nearly all the models are picking this up though the GFS and the ECM seem to be the most agressive with the development of this low. The last time we saw this happen we saw Bertha develop so it does need to be closely watched, esp as the track looks more southerly as well.
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#165 Postby KWT » Fri Jul 11, 2008 4:50 am

The area doesn't look great right now with the southern region still showing convection but probably enhanced by the ITCZ. Still the models are fairly slow at development at first with only a weak low at first so I'm not expecting quick development however given low SAL, SSt's that are warm enough and shear not too bad plus the fact we've already seen Bertha form from here only a week ago all argues for development IMO.

The wave will need to be watched far more then Bertha because as Bertha exits a upper ridge forms behind it and this will keep this wave on a steady westward tracdk until Bertha totally lifts out of the way and by the time that happens this could well be a real threat to the Caribbean Islands. We shall have to wait and see.
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Re: GFS,EURO spawns New Low off Africa

#166 Postby Meso » Fri Jul 11, 2008 5:15 am

06z GFS

114 Hours
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#167 Postby KWT » Fri Jul 11, 2008 5:29 am

Yep 06z still shows Bertha in the picture and our other low as well:

http://www.nco.ncep.noaa.gov/pmb/nwprod ... n_144m.gif
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Re: Possible development off W Africa during next several days

#168 Postby cycloneye » Fri Jul 11, 2008 5:38 am

If you look at the cloud pattern,it looks like some kind of circulation is in the area,even though convection is not plenty at this time.

Image
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#169 Postby KWT » Fri Jul 11, 2008 5:46 am

Yeah there does indeed seem to be some spin, whether or not it regains convection soon will determine whether it forms soon or a little further west as I personally expect, its like a less convective version of Bertha when it came off Africa.
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Re: Possible development off W Africa during next several days

#170 Postby cycloneye » Fri Jul 11, 2008 6:09 am

Tafb 72 hour forecast.

Image
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#171 Postby HURAKAN » Fri Jul 11, 2008 6:47 am

Image

Image

Convection making a comeback.
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#172 Postby KWT » Fri Jul 11, 2008 7:01 am

Yep its only weak but it is a start, I think the Dmax tomorrow will be the key to watch, it does require watching though. I do note there is some more stable air of to the NW closer to the Cape Verde islands but as long as it stays away from that it should be ok.
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Re: GFS,EURO spawns New Low off Africa

#173 Postby tailgater » Fri Jul 11, 2008 7:33 am

Tropical predition center sees it at 72hr. forecast.
http://www.nhc.noaa.gov/tafb_latest/atl ... testBW.gif
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#174 Postby HURAKAN » Fri Jul 11, 2008 7:38 am

If it develops, I think this one will take more time than Bertha.
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#175 Postby KWT » Fri Jul 11, 2008 7:39 am

Yes tailgator thats interesting, also note that Bertha is still in the picture as well which could lead to a very complex forecast track for this wave coming off Africa if it can catch up around the same longitutde as Bertha before Bertha moves out of the way.
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#176 Postby KWT » Fri Jul 11, 2008 8:00 am

Well yeah it should do Hurakan as Bertha 08 really was the exception to the rule, I think given the model agreement development is quite likely to occur but how rapidly is another matter.
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#177 Postby Cyclone1 » Fri Jul 11, 2008 8:33 am

If we get Two Cape Verde storms before July 15th, I will officially jump on the active season bandwagon.
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#178 Postby Dean4Storms » Fri Jul 11, 2008 8:35 am

Very interesting year ahead I'm afraid. If this is any indication of what the real CV Season will be like we are in for an exciting year TC formation and tracking wise.
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Re: Possible development off W Africa during next several days

#179 Postby Ed Mahmoud » Fri Jul 11, 2008 9:50 am

Way too soon to make any bold stands, in my unofficial and amateur opinion, but if the European is right, lower heights near Florida might draw this towards Florida and the Southeast, or could even recurve it at the last minute. The Gulf looks safe. Of course, that all depends on the Euro being correct at 10 days.
Image


Looks to be under a tad bit of shear now from the East, but that should improve, and a strong mid-level Easterly jet should help give it a kick start.

Image


Disclaimer: This is an unofficial and amateur opinion, and Storm2K not only doesn't endorse it, they are probably a little embarrased every time I post. :D
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#180 Postby KWT » Fri Jul 11, 2008 10:24 am

The problem with the Euro is Bertha is still at 30N even at 168hrs, if it clears out quicker then ther eis a greater chance of heights building in behind it. There seems to be two options, the first is Bertha takes its sweet time getting out of the way like the 06z GFS and the 0z ECM and the weakness is still in place when this system comes along...or it gets out of the way so that by the time this system comes along a weak ridge has built back in and this outs the Caribbean Islands and also the east coast at greater risk.
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